a repetition of a musical theme in which it is modified or embellished

noun

something a little different from others of the same type

noun

an artifact that deviates from a norm or standard

noun

the angle (at a particular location) between magnetic north and true north

noun

the process of varying or being varied

noun

(astronomy) any perturbation of the mean motion or orbit of a planet or satellite (especially a perturbation of the earth's moon)

noun

(biology) an organism that has characteristics resulting from chromosomal alteration

noun

(ballet) a solo dance or dance figure

noun

the act of changing or altering something slightly but noticeably from the norm or standard

noun

The act of varying; a partial change in the form, position, state, or qualities of a thing; modification; alternation; mutation; diversity; deviation; as, a variation of color in different lights; a variation in size; variation of language.